"Lead the Sentinels and Marines in search of the Index."
The Library: Evolved is a cut reimagining of the seventh mission in Halo SPV3. It is listed as SPV3C20_Evolved, also known as C20_Evolved.
Overview & Background
- From the level's description, it can be presumed that Marines would be present to assist the Master Chief. It is unknown if they would've been present from the start, dropped off by Pelicians, or have their own checkpoints just as the Covenant does.